Having Particular Deposited Structure (e.g., Angled, Plural Layered) Produced By Vapor Deposition Patents (Class 349/125)
  • Patent number: 11682361
    Abstract: In a liquid crystal device, an electrode is provided between a pixel area of a first substrate and a seal material, and an AC signal is applied to the electrode where a potential with respect to a common potential applied to a common electrode as a reference potential is alternately switched between a positive polarity and a negative polarity. For the AC signal, a length of a positive polarity period where a polarity becomes positive with respect to the common potential and a length of a negative polarity period where a polarity becomes negative with respect to the common potential are different. When anionic impurities of a liquid crystal layer are focused, a positive polarity period length is greater than a negative polarity period length. When cationic impurities of the liquid crystal layer are focused, a negative polarity period length is greater than a positive polarity period length.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: June 20, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hiroyuki Oikawa
  • Patent number: 11640085
    Abstract: A liquid crystal device includes a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, the liquid crystal layer including liquid crystal molecules, a spacer disposed between the first substrate and the second substrate, the spacer being configured to define a distance between the first substrate and the second substrate, an electrode disposed between the first substrate or the second substrate and the liquid crystal layer, the electrode being configured to apply an electric field to the liquid crystal layer, and an inorganic oriented film disposed between the electrode and the liquid crystal layer.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: May 2, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Masakazu Nishida
  • Patent number: 11520186
    Abstract: A liquid crystal display capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: December 6, 2022
    Assignee: Nissan Chemical Corporation
    Inventors: Yasushi Tomioka, Hidetoshi Abe, Katsumi Kondo
  • Patent number: 11126047
    Abstract: An ocular optical system including an eyewear device and a tunable light attenuator is provided. The tunable light attenuator is disposed on a light path which the eyewear device is disposed on and includes a plurality of cholesteric liquid crystal layers, a plurality of electrode layers, and a controller. Each of the cholesteric liquid crystal layers is disposed between two of the electrode layers. The controller is electrically connected to the electrode layers and configured to adjust voltages applied to the electrode layers so as to operate the cholesteric liquid crystal layers in at least two steps of light attenuation for randomly polarized light with at least one of a blue band and an ultraviolet band.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 21, 2021
    Assignee: LIQXTAL TECHNOLOGY INC.
    Inventors: Hung-Shan Chen, Ming-Syuan Chen, Chien-Chung Chen
  • Patent number: 11092869
    Abstract: A display panel includes: a substrate; a plurality of first grooves formed in a surface of the substrate; a second metal layer, a dielectric layer and a first metal electrode layer disposed in sequence within each of the plurality of first grooves; electronic ink filled within each of the plurality of first grooves; a first encapsulation substrate disposed on the surface of the substrate provided with the plurality of first grooves; and a plurality of point electrodes disposed on the first encapsulation substrate. The first metal electrode layer is semi-transmissive, the dielectric layer is light-transmissive, and the second metal layer is non-transmissive. The electronic ink includes black charged particles. The plurality of first grooves are in one-to-one correspondence with the plurality of point electrodes.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 17, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongshu Zhang, Xiaoling Xu, Yun Qiu
  • Patent number: 11043358
    Abstract: A measuring apparatus that irradiates a sample with a charged particle beam to observe the sample includes a particle source that outputs the charged particle beam, a lens that collects the charged particle beam, a detector that detects a signal of emitted electrons emitted from the sample which is irradiated with the charged particle beam, and a control device that controls the output of the charged particle beam and the detection of the signal of the emitted electrons in accordance with an observation condition, in which the control device sets, as the observation condition, a first parameter for controlling an irradiation cycle of the charged particle beam, a second parameter for controlling a pulse width of the pulsed charged particle beam, and a third parameter for controlling detection timing of the signal of the emitted electron within the irradiation time of the pulsed charged particle beam, and the third parameter is determined in accordance with a difference in intensity of signals of the plurality
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: June 22, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Ryoko Araki, Natsuki Tsuno, Yohei Nakamura, Masahiro Sasajima, Mitsuhiro Nakamura, Toshihide Agemura
  • Patent number: 11009398
    Abstract: A tunable optical filter, includes a light source configured to emit optical radiation to a sample; an input optical element configured to receive optical radiation reflected from the sample; a liquid crystal cell comprising electrodes, the liquid crystal cell contacting the input optical element; an output optical element, contacting the liquid crystal cell; and a control unit adapted to apply a preset voltage to the liquid crystal cell via the electrodes; wherein the input optical element and the output optical element have a same first refractive index, wherein, when voltage is not applied to the liquid crystal cell, the first refractive index is greater than a second refractive index of the liquid crystal cell for a wavelength range of incident optical radiation, and wherein the input optical element, the liquid crystal cell and the output optical element are tilted at an angle to the incident optical radiation.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: May 18, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Aleksey Dmitrievitch Lantsov, Alexander Viktorovitch Morozov, Aleksey Grigorievitch Anikanov, Maksim Vladimirovitch Ryabko, Anton Sergeevitch Medvedev
  • Patent number: 10969614
    Abstract: A detection device is provided. The detection device includes a first substrate; a plurality of detection electrodes disposed in a matrix configuration in a display region on a plane parallel to the first substrate; a second substrate facing the first substrate; a first conductive layer provided in a peripheral region located outside the display region in planar view; a polarizing plate provided above the second substrate; and a second conductive layer provided between the polarizing plate and the second substrate, wherein the second conductive layer is electrically coupled to the first conductive layer, and the first conductive layer is arranged to be part of an electrically connected loop around the display region.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: April 6, 2021
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Koji Ishizaki
  • Patent number: 10962687
    Abstract: The invention relates to an optical article provided with antireflection properties, comprising a substrate having at least one main surface coated with an antireflection coating comprising, starting from the substrate: a sub-layer comprising two adjacent layers formed from the same material, the sum of the thicknesses of the two adjacent layers being greater than or equal to 75 nm; and a multilayered antireflection stack comprising at least one high refractive index layer and at least one low refractive index layer, the deposition of the first of said two adjacent layers of the sub-layer having been carried out without ion assistance and the deposition of the second of said two adjacent layers of the sub-layer having been carried out under ion assistance. The invention also relates to a process for manufacturing such an optical article.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 30, 2021
    Assignee: Essilor International
    Inventors: Luc Nouvelot, Johann Rotte, Karin Scherer, Daniel Vallet
  • Patent number: 10942398
    Abstract: A layered optical element includes a substrate layer, an electrode layer disposed on the substrate layer, a liquid crystal (LC) layer comprising LC molecules, and a nanopatterned alignment layer in physical contact with the LC layer and disposed on a surface of either the substrate layer or the electrode layer. The nanopatterned alignment layer includes an arrangement of nanostructures, e.g., a grouping of nanolines. For a subset of the grouping of nanolines, the nanolines are configured to orient the LC molecules along a varying local orientation direction of each of nanoline in the subset. The varying local orientation direction of each nanoline in the subset can vary along a length of each nanoline.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: March 9, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Giuseppe Calafiore, Wai Sze Tiffany Lam
  • Patent number: 10859875
    Abstract: Disclosed are a method for forming a pattern for liquid crystal orientation of a zenithal bi-stable liquid crystal panel, a liquid crystal orientation substrate including the pattern formed thereby, and a mask substrate used for forming the pattern.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: December 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: So Young Choo, Jin Soo Lee, Eun Kyu Her, Bu Gon Shin
  • Patent number: 10727286
    Abstract: A pixel structure disposed on a substrate having a pixel sensor region and a pixel display region disposed beside the pixel sensor region is provided. The pixel structure includes a pixel defining layer, a light-emitting diode, a pixel driving circuit and a sensor device. The pixel defining layer is disposed on the substrate and has a device accommodation portion located in the pixel display region. The light-emitting diode is disposed on the device accommodation portion. The area of the light-emitting diode is smaller than that of the device accommodation portion. The pixel driving circuit is disposed on the substrate, is electrically connected to the light-emitting diode, and includes a pixel electrode by which the device accommodation portion is covered. The light-emitting diode is bonded onto the pixel electrode. The sensor device is disposed between the pixel defining layer and the substrate and located in the pixel sensor region.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: July 28, 2020
    Assignee: Au Optronics Corporation
    Inventors: Che-Chia Chang, Ming-Hung Chuang
  • Patent number: 10423021
    Abstract: In one embodiment, the present invention includes a substrate; a detection electrode provided in a display region on a plane parallel to the substrate, the detection electrode including a plurality of metal wires; a first conductive layer provided in a peripheral region located to the outside the display region; a protective layer provided on the detection electrode; a polarizing plate provided above the protective layer; and a second conductive layer provided between the polarizing plate and the protective layer in a direction perpendicular to the substrate. The second conductive layer has a higher sheet resistance than the metal wires and is electrically coupled to the first conductive layer.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: September 24, 2019
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Koji Ishizaki
  • Patent number: 10001675
    Abstract: There is provided a liquid crystal device having high reliability, a method of manufacturing a liquid crystal device, and an electronic apparatus. A liquid crystal device includes a seal material for sticking an element substrate and a counter substrate together, an encapsulant for filling an opening region in which the seal material is opened, a liquid crystal layer interposed by the element substrate and the counter substrate, a first inorganic alignment film provided between the element substrate and the liquid crystal layer, and a second inorganic alignment film provided between the counter substrate and the liquid crystal layer, in which at least the first inorganic alignment film is expanded and arranged in a region overlapping with the encapsulant in plan view.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: June 19, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Hideki Kitahara, Kazunari Sakamoto
  • Patent number: 9835885
    Abstract: The high-pixel-count uncooled thermal imaging arrays disclosed herein have liquid crystal (LC) microcavity transducers separate from the read-out integrated circuit (ROIC). The transducer converts incident infrared (IR) radiation in birefringence changes that can be measured with visible light. In other words, the system uses the temperature sensitivity of the LC birefringence to convert the IR scene to a visible image. Measurements on sample arrays indicate that the LC material quality is similar to that of bulk samples and has good noise performance. Additionally, high-fill-factor arrays on fused-silica substrates may be processed to enable optimization of conditions for greatly improved temperature sensitivity. An additional IR absorber layer may be integrated into the process to tune the structure for the infrared.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 5, 2017
    Assignee: Massachusetts Institute of Technology
    Inventors: Robert K. Reich, Harry R. Clark, Carl O. Bozler, Shaun R. Berry, Jeremy B. Muldavin
  • Patent number: 9170442
    Abstract: A liquid crystal display is provided that includes a first base substrate including a first surface, a second base substrate including a second surface, a liquid crystal layer including liquid crystal molecules positioned between the first and second base substrates and configured to change alignment when electrical power is applied thereto, a first electrode positioned on the second surface and including a plurality of substantially parallel grooves extending in a first direction on a surface facing the first base substrate, the plurality of grooves configured to align the liquid crystal molecules in a preset direction when electrical power is applied, and a second electrode positioned on the first surface or on the second surface, wherein a voltage difference between the first and second electrodes applies the electrical power to the liquid crystal molecules.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: October 27, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Kiyong Lee, Seungmin Seen, Jeongseok Ki, Sangjo Ryu
  • Patent number: 9025123
    Abstract: A liquid crystal display device includes a plurality of pixels arranged in a matrix, each pixel having: first and second substrates; a first electrode formed on an opposing face of the first substrate opposing the second substrate; a first alignment film covering the first electrode and the opposing face of the first substrate; a second electrode formed on the opposing face of the second substrate opposing the first substrate; a second alignment film covering the second electrode and the opposing face of the second substrate, and a liquid crystal layer which is provided between the first alignment film and the second alignment film and includes liquid crystal molecules, where a pretilt is imparted on the liquid crystal molecules, a plurality of uneven portions is formed on the first electrode, and a width of a portion of the convex portions provided on the first electrode becomes narrower toward the tip portion.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: May 5, 2015
    Assignee: Sony Corporation
    Inventors: Chikashi Kobayashi, Shunichi Suwa, Masashi Miyakawa
  • Patent number: 9007551
    Abstract: A high resolution, wide viewing angle, low power consumption liquid crystal display device which utilizes nematic liquid crystal and which can attain both the memory effect and wide-viewing-angle display characteristic. A liquid crystal display device that utilizes nematic liquid crystal and includes a pair of transparent substrates; a group of electrodes for applying to a liquid crystal layer disposed between the pair of substrates an electric field having a component substantially parallel to the surfaces of the substrates; and an alignment layer disposed between the liquid crystal layer and at least one of the pair of substrates and having been subjected to liquid crystal anchoring treatments in plural directions. The plurality of liquid crystal anchoring directions of the alignment layer form substantially equal angles relative to one another, and a rising angle in each of the liquid crystal anchoring directions with respect to the corresponding substrate surface is substantially zero.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: April 14, 2015
    Assignee: Japan Science and Technology Agency
    Inventors: Makoto Yoneya, Jong-Hyun Kim, Hiroshi Yokoyama, Jun Yamamoto
  • Publication number: 20150098051
    Abstract: A liquid crystal device includes a liquid crystal layer, and an inorganic oriented film between the liquid crystal layer and an electrode, in which the inorganic oriented film has a first inorganic oriented film that has a first prismatic structure including silicon oxide, and a second inorganic oriented film that is formed so as to cover at least a portion of the first prismatic structure, and includes nitrogen.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 9, 2015
    Inventors: Yoshimichi Matsumoto, Yoshio Taniguchi, Norikazu Komatsu
  • Patent number: 8988639
    Abstract: A method for fabricating a liquid crystal display device including a TFT substrate having an alignment film formed thereon, an opposing substrate, and a liquid crystal layer sandwiched therebetween. The alignment film on the TFT substrate includes a photolytic polymer made from a first precursor including cyclobutane, and a non-photolytic polymer made from a second precursor. The method includes the steps of depositing a mixture material including the first precursor and the second precursor in which the second precursor settles more on an upper surface of the TFT substrate than the first precursor, imidizing the mixture material, and irradiating the mixture material with ultraviolet light for photo-alignment, and after irradiating, heating the mixture material to form the alignment film.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 24, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Noboru Kunimatsu, Chikae Matsui, Hidehiro Sonoda, Yuko Matsumoto, Shoichi Uchino, Masaki Matsumori, Yasushi Tomioka
  • Patent number: 8908134
    Abstract: In the step of curing a resin for bonding a TFT substrate and a counter substrate each having an alignment film that has been optically aligned by using UV-light, damage to the alignment film due to the UV-light can be prevented without using a light shielding mask. A UV-light absorption layer is formed between each black matrix on the counter substrate. The TFT and counter substrates are sealed at their periphery by a resin that is cured by UV-light radiated from the counter substrate side. Since the absorption layer has a high absorbability to UV-light at a wavelength of 300 nm or less that degrades the alignment film, damage to the alignment film due to the UV-light for curing the resin can be prevented. Thus, provision of a light shielding mask for shielding the UV-light for the display region can be saved.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 9, 2014
    Assignee: Japan Display Inc.
    Inventors: Noboru Kunimatsu, Yuko Matsumoto, Yasushi Tomioka, Masateru Morimoto, Atsuhiro Katayama
  • Patent number: 8885136
    Abstract: A display device includes a first substrate having organic and alignment films, a second substrate adhered to the first substrate by a sealant which surrounds a pixel region, a columnar spacer formed on the second substrate defining a distance between the first substrate and the second substrate, and a recessed portion formed in the organic film of the pixel region, the recessed portion facing to the columnar spacer. The recessed portion has a convex portion at a bottom of the recessed portion, and a height of a top of the convex portion from the first substrate is lower than a height of an upper surface of the organic film from the first substrate. A thickness of an alignment film on the convex portion is smaller than a thickness of the bottom of the recessed portion, and a top of the columnar spacer is in contact with the convex portion.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: November 11, 2014
    Assignee: Japan Display Inc.
    Inventors: Yosuke Hyodo, Koichi Igeta, Toshiki Kaneko, Noboru Kunimatsu, Hidehiro Sonoda
  • Patent number: 8873006
    Abstract: The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 28, 2014
    Assignee: Japan Display Inc.
    Inventors: Noboru Kunimatsu, Masaki Matsumori, Hidehiro Sonoda, Yasushi Tomioka, Toshiki Kaneko
  • Patent number: 8860913
    Abstract: The present invention provides a liquid crystal display device producing less image sticking. The liquid crystal display device of the present invention comprises: a pair of substrates; and a liquid crystal layer between the substrates, wherein at least one of the substrates comprises an alignment film and a photopolymer film on the alignment film, the photopolymer film comprises polymers constituted by a photopolymerizable monomer, the photopolymerizable monomer includes two or more polymerizable functional groups, the polymerizable functional groups are bonded to each other through two or more aromatic rings, the aromatic rings include at least one naphthalene ring, and a bond between the naphthalene ring and another aromatic ring has a rotational degree of freedom.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: October 14, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Yuichiro Yamada, Masanobu Mizusaki
  • Patent number: 8854580
    Abstract: A method of producing spatially varying pretilt angles across a liquid crystal cell coats a substrate with a polyimide alignment layer and a layer of photoalignment material on top of the polyimide layer. An applied beam with variable light dosage spatial or temporal profiles is then used to achieve a corresponding pretilt angle distribution.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: October 7, 2014
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Hoi Sing Kwok, Yuet Wing Li, Man Chun Tseng
  • Patent number: 8854582
    Abstract: A method for fabricating a liquid crystal display device having a TFT substrate in which an alignment film is formed over a pixel including a pixel electrode and a TFT, an opposing substrate which faces the TFT substrate, and liquid crystals sandwiched between the TFT substrate and the opposing substrate, the alignment film on the TFT substrate including a first and a second alignment film. The method includes depositing a mixture liquid of polyamide acid ester, 80 percent or more of which is polyamide acid ester including cyclobutane, and polyamide acid not including cyclobutane onto the TFT substrate and the opposing substrate, and after drying and firing the TFT substrate and the opposing substrate to harden the alignment film, irradiating the alignment film with ultraviolet light for photo-alignment of the alignment film and, thereafter, heating the TFT substrate and the opposing substrate, thereby forming the alignment film.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: October 7, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Noboru Kunimatsu, Chikae Matsui, Hidehiro Sonoda, Yuko Matsumoto, Shoichi Uchino, Masaki Matsumori, Yasushi Tomioka
  • Publication number: 20140253854
    Abstract: A liquid crystal display includes: a drive substrate having a plurality of pixel electrodes at a pixel section as an effective pixel region; a counter substrate arranged in opposition to the drive substrate and having a counter electrode that is arranged in opposition to the plurality of pixel electrodes; a liquid crystal layer sealed between the drive substrate and the counter substrate; an alignment film formed at the pixel section and a part of or an entire peripheral section thereof on the surface at the liquid crystal layer side of the drive substrate; a protective film formed between the pixel electrode and the alignment film in at least the pixel section on the drive substrate; and a conductive film formed on the part of or the entire peripheral section of the drive substrate to come in contact with the alignment film.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 11, 2014
    Applicant: Sony Corporation
    Inventors: Shinya Inage, Kazuki Abe, Yoichiro Nishida, Koudai Tokumasu
  • Patent number: 8780304
    Abstract: A liquid crystal display device has first and second substrates. A first electrode on the first substrate is alignment-treated and a second electrode on the second substrate is alignment-treated. A liquid crystal layer is disposed between the first substrate and the second substrate. Alignment-treating includes forming an alignment direction. The alignment direction of the first and second substrates is formed by irradiating an ion beam onto the first and second electrodes using an ion beam irradiation apparatus.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: July 15, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Yong Sung Kim
  • Patent number: 8767153
    Abstract: The invention relates to a process of preparing an alignment film for the alignment of liquid crystals (LCs) or reactive mesogens (RMs), by a direct particle beam deposition process, to an alignment film obtainable by said process, to the use of said alignment film for the alignment of LCs or RMs, especially in the form of thin layers, to a multilayer comprising said alignment film and one or more LC and/or RM layers, and to the use of the alignment film and multilayer in optical, electronic and electrooptical applications.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: July 1, 2014
    Assignee: Merck Patent GmbH
    Inventors: Oleg Yaroshchuk, Eugene Telesh, Aleksander Khokhlov
  • Patent number: 8767156
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: July 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 8736804
    Abstract: A liquid crystal display device includes a TFT substrate having an organic passivation film, and a counter substrate, with liquid crystals inside of the liquid crystal display device. A columnar spacer is formed on the counter substrate, which defines a distance between the TFT substrate and the counter substrate, and a concavo-convex pedestal is formed in a pixel region of the TFT substrate, the concavo-convex pedestal being provided in facing relation to the columnar spacer. The concavo-convex pedestal is formed with a convex portion and a concave portion at a bottom of the concavo-convex pedestal, with a top end of the columnar spacer being in contact with two or more convex portions formed on the bottom of the concavo-convex pedestal, and an area at the bottom of the concavo-convex pedestal being larger than the area at the top end of the columnar spacer.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: May 27, 2014
    Assignee: Japan Display Inc.
    Inventors: Yosuke Hyodo, Koichi Igeta, Toshiki Kaneko, Noboru Kunimatsu, Hidehiro Sonoda
  • Patent number: 8730439
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: May 20, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 8704983
    Abstract: The invention discloses an LCD panel, an LCD device, and a manufacturing method thereof. The LCD panel comprises substrate(s); the substrate is provided with an oriented film and a frame adhesive, and the frame adhesive is formed on the periphery of the oriented film; the oriented film comprises an ordinary oriented film covering the effective display area and a porous oriented film arranged around the edge of the ordinary oriented film for adsorbing the impurities in the frame adhesive area. The oriented film in the LCD panel of the invention comprises a porous oriented film; the porous oriented film can absorb the foreign particles produced by the frame adhesive to prevent the impurities in the frame adhesive area from permeating into the effective display area, can effectively prevent the impurities produced by the frame adhesive from permeating into the effective display area to become liquid crystal pollutants, and can avoid pixel to produce stains or non-uniform display.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: April 22, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yu Song
  • Patent number: 8681304
    Abstract: Disclosed is a liquid crystal display device comprising a lower substrate, an upper substrate, and a liquid crystal layer interposed between the substrates and aligned in a predetermined rubbing direction, in which pixel regions are respectively defined by gate lines and data lines formed to intersect each other on the lower substrate, and a switching device is arranged in an intersecting portion of the gate line and the data line, the liquid crystal display device comprising: a lateral pattern portion formed on at least one side of the data line and formed zigzagging along an extending direction of the data line. With this, it is possible to effectively improve and prevent the rubbing defect that occurs in the stepped region of the data line during the rubbing process for alignment of liquid crystal.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: March 25, 2014
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Hae Jin Park, Won Chul Sin
  • Patent number: 8681296
    Abstract: The invention discloses a liquid crystal display (LCD) panel manufacturing method as well as an LCD panel and an LCD. The manufacturing method comprises the following steps: A: Treating a surface of an electrode of an LCD panel, the surface at least comprising a contact surface with an Au ball, to diminish the adhesion of an alignment liquid to the contact surface and prevent the alignment liquid from not coating the contact surface; and B: Coating or printing the alignment liquid. Because the electrode surface to which an Au ball particle will be applied (namely the transfer pad) is treated before the application to diminish the adhesion of the alignment liquid to this surface, and no alignment layer will be formed on the surface of the transfer pad. Therefore, the alignment layer can be very wide, the uniformity of the alignment layer at the edge is good, the accuracy is high, the display effect on the edge of the LCD panel is improved, and the frame of the LCD panel is narrowed.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: March 25, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chenghung Chen
  • Patent number: 8673422
    Abstract: A process for protecting the external face of an electro-optical device, the external face comprising at least one optical film adhesively bonded to a transparent substrate and set back therefrom, comprises encapsulating the optical element between the substrate and a transparent cover that is substantially the same size as the substrate. The process comprises adhesive bonding of the cover, the adhesive bonding being achieved by depositing uncured adhesive in two steps, namely a first step that is used first to take up the step difference between the substrate and the optical element, and a second step that is used to adhesively bond the protective cover. Smaller respective thicknesses of adhesive shrink in each step and thus, in the end, the total shrinkage is limited and the quality of the product is improved.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: March 18, 2014
    Assignee: Thales
    Inventors: Thierry Kretz, Bernard Meunier
  • Patent number: 8654289
    Abstract: An LCD device includes first and second substrates, an alignment layer formed over at least one of the substrates, and a liquid crystal layer formed between the substrates. The alignment layer is formed of a mixture of rubbing alignment and UV alignment materials. A method of fabricating the LCD device includes preparing first and second substrates; coating an alignment layer over at least one of the substrates; performing a rubbing process on the substrate coated with the alignment layer; and irradiating polarized UV rays onto the substrate coated with the alignment layer, wherein the alignment layer is formed of a mixture of rubbing alignment a UV alignment materials. The rubbing process obtains high anchoring energy is obtained, thereby preventing afterimages. Also, the process of irradiating the polarized UV rays eliminates the problem of light leakage.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Su-Hyun Park
  • Patent number: 8654298
    Abstract: An oblique vapor deposition substrate having an oblique vapor deposition layer formed thereon is provided, wherein a plurality of pixel sections is arranged in a matrix of intersected straight lines of two directions with each pixel section being spaced apart from each other, and has been relatively rotated in a plane of the oblique vapor deposition substrate taking into consideration the distribution of the vapor deposition directions in the oblique vapor deposition layer.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: February 18, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Koichi Terao
  • Patent number: 8654288
    Abstract: A method for fabricating a liquid crystal display device includes providing an LCD panel that includes a photopolymerizable compound in its liquid crystal layer; and forming alignment sustaining layers by polymerizing the photopolymerizable compound in the liquid crystal layer of the LCD panel with the liquid crystal layer irradiated with light and supplied with a voltage simultaneously. The forming the alignment sustaining layers includes the steps of: i) applying a predetermined voltage between a pixel electrode and a counter electrode while a switching element is in ON state; and ii) changing the voltage at a storage capacitor counter electrode into a voltage, of which the polarity is opposite to a voltage at the storage capacitor counter electrode in the step i), after the switching element in ON state has been turned OFF.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: February 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisashi Nagata, Junichi Yamada
  • Patent number: 8648988
    Abstract: This invention enables forming a photo-alignment film having a large LC anchoring strength in an IPS type liquid crystal display device. An alignment film is adapted to have a two-layer structure including a photo-alignment film and an alignment film with enhanced film strength. The photo-alignment film is formed of a precursor of polyamide acid ester, 80 percent or more of which is polyamide acid ester including cyclobutane. The alignment film with enhanced film strength is formed of a precursor of polyamide acid. After irradiating the substrate with ultraviolet light for photo-alignment, the substrate is heated. Thus, it is possible to achieve a high LC anchoring strength of the alignment film as the whole for photo-alignment, without degrading the mechanical strength of the alignment film with enhanced film strength.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: February 11, 2014
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Noboru Kunimatsu, Chikae Matsui, Hidehiro Sonoda, Yuko Matsumoto, Shoichi Uchino, Masaki Matsumori, Yasushi Tomioka
  • Patent number: 8634048
    Abstract: A liquid crystal device according to embodiments of the invention includes a first alignment layer that is disposed on the first substrate and includes a second alignment layer that is disposed on the second substrate. The first alignment layer includes a first inorganic layer and a second inorganic layer which having a column-like structure with an orientation angle different from an orientation angle of the column-like structure of the first inorganic layer. The second alignment layer includes a third inorganic layer and a fourth inorganic layer which having a column-like structure with an orientation angle different from an orientation angle of the column-like structure of the third inorganic layer. The ratio of the thickness of the second inorganic layer to the thickness of the first inorganic layer is different from the ratio of the thickness of the fourth inorganic layer to the thickness of the third inorganic layer.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: January 21, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Shuhei Yamada
  • Patent number: 8629961
    Abstract: An alignment structure of a liquid crystal display device includes a substrate, a plurality of region defining strips disposed at intervals on the substrate, and organic alignment strips disposed between the region defining strips.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: January 14, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Gee-Sung Chae, Jin-Wuk Kim
  • Patent number: 8629969
    Abstract: A liquid crystal display panel has a pair of opposed substrates, a seal material and a liquid crystal material. The seal material bonds the pair of substrates to each other, and is formed into a closed curve shape enclosing a region including a pixel region. The liquid crystal material is filled in a region enclosed by the pair of substrates and the seal material. A surface of interface which is a surface made up of at least one substrate of the pair of substrates, and which is in contact with the liquid crystal material in a frame region enclosed by an outer periphery of the pixel region and an inner periphery of the seal material, includes a low wettability structure in which wettability to the liquid crystal material is lower than that of the surface of the one substrate in the pixel region.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: January 14, 2014
    Assignee: Gold Charm Limited
    Inventor: Toshihiko Motomatsu
  • Patent number: 8597739
    Abstract: An alignment film (100) according to the present invention includes: a first alignment layer (102) containing a first polyimide (p1); and a second alignment layer (104) containing a polymerization product (po) resulting from polymerization of a polyfunctional monomer and a second polyimide (p2). The polyfunctional monomer is represented by general formula (1) P1-A1-(Z1-A2)n-P2 (in general formula (1), P1 and P2 each independently of the other are an acrylate, methacrylate, acrylamide, methacrylamide, vinyl, vinyloxy, or epoxy group; A1 and A2 each independently of the other represent a 1,4-phenylene, 1,4-cyclohexane, 2,5-thiophene, or naphthalene-2,6-diyl group; Z1 is a —COO— group, a —OCO— group, a —O— group, a —CONH— group or a single bond, where n is 0, 1, or 2).
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: December 3, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masanobu Mizusaki, Yohei Nakanishi
  • Patent number: 8531633
    Abstract: According to an exemplary embodiment of the present invention, a liquid crystal layer may be aligned by using an alignment layer including an alignment base layer having a horizontal alignment layer and a vertical alignment layer, and an alignment control agent. Accordingly, a multi-domain liquid crystal display having an excellent viewing angle for all grays may be provided. Also, a multi-domain liquid crystal display having a fast response speed as well as an excellent viewing angle for all grays may be provided.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: September 10, 2013
    Assignee: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventor: Jae-Hoon Kim
  • Publication number: 20130194533
    Abstract: A display device employing a liquid crystal module and a method for fabricating the display device are provided. The liquid crystal module includes a first substrate and a second substrate, wherein the first substrate is disposed opposite to the second substrate; a first photo-alignment layer disposed on a top surface of the first substrate, and a second photo-alignment layer disposed on a bottom surface of the second substrate, wherein the first and second photo-alignment layers include a plurality of protrusions, and wherein the protrusions are formed by polymerizing non-polar monomers having two or three acrylate functional groups; and a liquid crystal layer disposed between the first and second photo-alignment layers.
    Type: Application
    Filed: January 30, 2013
    Publication date: August 1, 2013
    Applicant: INNOLUX CORPORATION
    Inventors: Rong-Ching YANG, Wei-Chuan HUANG, Han-Chang CHEN, Shih-Fang LIAO, Hung-Ming SHEN, Wan-Ling HUANG, Kai-Neng YANG, Tsau-Hua HSIEH
  • Patent number: 8482708
    Abstract: According to an exemplary embodiment of the present invention, a liquid crystal layer may be aligned by using an alignment layer including an alignment base layer having a horizontal alignment base layer and a vertical alignment base layer, and an alignment control agent. Accordingly, a multi-domain liquid crystal display having an excellent viewing angle for all grays may be provided. Also, a multi-domain liquid crystal display having a fast response speed as well as an excellent viewing angle for all grays may be provided.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: July 9, 2013
    Assignee: IUCF-Hyu (Industry-University Cooperation Foundation Hanyang University)
    Inventor: Jae-Hoon Kim
  • Patent number: 8482702
    Abstract: A liquid crystal display device includes a liquid crystal layer 1 whose state is switchable between a light-transmitting state and a light-scattering state, a front substrate 3 and a rear substrate 2 between which the liquid crystal layer 1 is held, a pair of electrodes 4, 8 between which the liquid crystal layer 1 is interposed and which are configured to apply a voltage across the liquid crystal layer 1, and first and second alignment films 13, 12 respectively provided between the liquid crystal layer 1 and the front substrate 3 and between the liquid crystal layer 1 and the rear substrate 2. The liquid crystal layer 1 includes, in each of the pixels, a continuous wall 10, a plurality of small sections 14 separated by the wall 10, and a plurality of liquid crystal regions 11, each of which is formed in any one of the plurality of small sections 14.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: July 9, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Eiji Satoh, Kiyoshi Minoura, Sayuri Fujiwara
  • Patent number: 8395734
    Abstract: An LCD device includes first and second substrates, an alignment layer formed over at least one of the substrates, and a liquid crystal layer formed between the substrates. The alignment layer is formed of a mixture of rubbing alignment and UV alignment materials. A method of fabricating the LCD device includes preparing first and second substrates; coating an alignment layer over at least one of the substrates; performing a rubbing process on the substrate coated with the alignment layer; and irradiating polarized UV rays onto the substrate coated with the alignment layer, wherein the alignment layer is formed of a mixture of rubbing alignment a UV alignment materials. The rubbing process obtains high anchoring energy is obtained, thereby preventing afterimages. Also, the process of irradiating the polarized UV rays eliminates the problem of light leakage.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Su Hyun Park
  • Patent number: 8373810
    Abstract: A micro-array of optical vortex retarders is provided by forming an alignment layer having a plurality of discrete alignment patches with different orientations. A layer of birefringent material, including one of a liquid crystal and a liquid crystal polymer precursor material, is provided adjacent to the alignment layer. The aligning orientation and position of each discrete alignment patch in the plurality of discrete alignment patches is selected to induce the layer of birefringent material to form at least one optical vortex retarder adjacent to a substantially non-oriented region of the alignment layer.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: February 12, 2013
    Assignee: JDS Uniphase Corporation
    Inventors: David M. Shemo, Scott McEldowney